CN116699106B - Device and method for rapidly detecting heavy metal content in soil - Google Patents
Device and method for rapidly detecting heavy metal content in soil Download PDFInfo
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- CN116699106B CN116699106B CN202310680562.4A CN202310680562A CN116699106B CN 116699106 B CN116699106 B CN 116699106B CN 202310680562 A CN202310680562 A CN 202310680562A CN 116699106 B CN116699106 B CN 116699106B
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- 239000002689 soil Substances 0.000 title claims abstract description 93
- 229910001385 heavy metal Inorganic materials 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 20
- 238000005070 sampling Methods 0.000 claims abstract description 168
- 238000005553 drilling Methods 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 8
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012031 short term test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
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- Chemical & Material Sciences (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application relates to the field of soil detection, and discloses a rapid detection device for heavy metal content in soil, which comprises a drilling barrel, wherein the drilling barrel is used for drilling into the soil to be sampled, a plurality of sampling ports are respectively arranged at different heights on the side wall of the drilling barrel, a sampling driving mechanism is used for simultaneously driving a plurality of sampling shovels to respectively collect the soil from the corresponding sampling ports, the sampling shovels are used for driving the sampling shovels through the sampling driving mechanism, the sampling shovels penetrate through the sampling ports to sample the external soil, the sampling shovels are respectively arranged corresponding to the sampling ports, and an anti-dropping assembly is used for sealing openings of the sampling shovels after the sampling shovels collect the soil and preventing the collected soil from dropping out. According to the application, the sampling driving mechanism can drive the sampling shovels to collect soil from the corresponding sampling ports at the same time, so that sampling of a plurality of depth points in the soil is realized, a large number of soil samples with different depths are collected rapidly, the subsequent soil heavy metal detection efficiency is improved, and the rapid detection of heavy metal content in the soil is realized.
Description
Technical Field
The invention relates to the technical field of soil detection, in particular to a device and a method for rapidly detecting heavy metal content in soil.
Background
When metal detection is carried out on soil, the soil needs to be sampled, in order to comprehensively know the distribution condition of metal in the soil, the soil of each depth layer of the soil needs to be sampled, a traditional sampling device adopts a drilling barrel to collect soil columns, and then the soil columns need to be pushed out of the drilling barrel; and when needs are gathered different degree of depth soil sample, traditional sampling device complex operation is comparatively inconvenient, has reduced soil heavy metal content's detection efficiency.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a rapid detection device and a rapid detection method for heavy metal content in soil, and solves the problems that the traditional sampling device is complex in operation and inconvenient to operate when soil samples with different depths are required to be collected.
In order to achieve the above purpose, the invention is realized by the following technical scheme: a rapid detection device for heavy metal content in soil comprises:
The drill cylinder is used for drilling into soil to be sampled, one side of the outer wall of the drill cylinder is fixedly connected with a rotating handle, the middle part of the drill cylinder is provided with a cavity, and the side walls of the drill cylinder are respectively provided with a plurality of sampling ports at different heights;
The sampling driving mechanism is used for simultaneously driving the plurality of sampling shovels to respectively collect soil from the corresponding sampling ports and is arranged in the middle of the drilling cylinder;
the sampling shovel is driven by the sampling driving mechanism, and is used for sampling the external soil through the sampling ports, a plurality of sampling shovels are respectively arranged corresponding to the sampling ports, and the sampling travelling direction of the sampling shovel is perpendicular to the axis of the drilling cylinder;
The anti-drop subassembly for with its opening closure after sampling shovel gathers earth, prevent that the earth of gathering from falling out, it sets up in sampling shovel opening part.
Preferably, the sampling driving mechanism comprises a screw rod, the screw rod is rotationally connected in the middle of the cavity of the drilling cylinder through a positioning shaft, a plurality of sliding blocks are connected to the outer wall of the screw rod in a threaded mode, conical blocks are arranged on the upper sides of the sliding blocks, guide grooves are formed in the side walls of the conical blocks, connecting blocks are connected to the inner walls of the guide grooves in a sliding mode, and one side, away from the opening, of the sampling shovel is fixedly connected to one end of each connecting block.
Preferably, the screw rod end part is fixedly connected with a rotary table, and one side of the rotary table is fixedly connected with a handle.
Preferably, the anti-drop subassembly includes the fly leaf, the fly leaf activity sets up in sampling shovel upside, the fly leaf downside rotates and is connected with the connection lever, connection lever one side rotates to be connected at sampling shovel roof, connection lever and sampling shovel articulated department are provided with the groove of stepping down, connection lever one end extends to sampling shovel inner chamber, connection lever is located sampling shovel inner chamber one end and rotates and be connected with the head rod, head rod keeps away from connection lever one end and rotates respectively and be connected with two second connecting rods, sampling shovel opening border both sides all rotate and are connected with the closure plate, two second connecting rod one end rotates respectively and is connected at two closure plate looks near the side.
Preferably, the anti-drop assembly further comprises a fixing plate, a lantern ring is fixedly connected to the middle of the fixing plate, the lantern ring is embedded in the outer wall of the screw rod, the lantern ring is limited to move along the axial direction of the screw rod through the screw rod, a plurality of springs are fixedly connected to the bottom side of the fixing plate, one end of each spring is fixedly connected to the upper side of the movable plate, and the movable plate can move up and down.
Preferably, the opening side of the sampling shovel is arranged in a triangle shape, and the sealing plates are covered on two side sides of the triangle of the sampling shovel.
Preferably, the inner wall of the drilling cylinder is provided with a baffle, the baffle cover is provided with a plurality of sampling ports for preventing soil from entering the drilling cylinder from the sampling ports when the drilling cylinder drills into the soil, the bottom end of the baffle is fixedly connected with a connecting ring, the connecting ring is rotationally connected to the bottom side of a cavity of the drilling cylinder, the bottom side of the sampling driving mechanism is fixedly connected with a lifting plate, and the lifting plate is arranged on the upper side of the connecting ring.
Preferably, a protruding plate is arranged on one side of the baffle, an L-shaped groove is formed in the side wall of the drill cylinder, and the protruding plate is arranged in the L-shaped groove.
Preferably, a cover plate is arranged at the opening at the upper end of the drill cylinder, the screw penetrates through the cover plate, the top end of the screw is fixedly connected with a rotary table, and the upper side of the rotary table is fixedly connected with a handle.
The invention provides a use method of the device, which comprises the following steps:
s1, determining the position of soil to be detected, aligning the tip of a drilling cylinder to the soil at the detection position, and drilling the drilling cylinder into the soil to reach the required depth by rotating a rotating handle;
s2, rotating the protruding plate in the L-shaped groove to drive the baffle to rotate on the inner wall of the drill cylinder, so that the sampling ports are opened;
S3, driving the turntable to rotate through rotating the handle, driving the screw to rotate, enabling the screw to rotate and driving the sliding blocks to slide upwards, driving the conical block to slide upwards, enabling the sampling shovel fixed by the connecting block to extend towards the sampling port through the cooperation of the guide groove and the connecting block in the process of sliding upwards, and then shoveling soil positioned outside the position of the sampling port into the sampling shovel;
S4, then, reversing the screw rod, and enabling the sliding blocks to slide downwards, so that the conical blocks slide downwards, and in the process, the guide grooves are matched with the connecting blocks, so that the connecting blocks drive the sampling shovel to retract inwards;
S5, in the process that the sampling shovel extends outwards, one end of the connecting lever pushes the first connecting rod under the action of the connecting lever, so that the two sealing plates are pushed outwards through the two second connecting rods until the two sealing plates are opened; when the sampling shovel is retracted, the connecting lever is used for pulling the first connecting rod through the connecting lever action, so that the two sealing plates are pulled inwards through the two second connecting rods, the two sealing plates are covered at the opening of the sampling shovel, and sampled soil is not easy to fall out of the sampling shovel.
The invention provides a device and a method for rapidly detecting the content of heavy metals in soil. The device comprises the following
The beneficial effects are that:
1. According to the invention, the sampling driving mechanism can drive the sampling shovels to collect soil from the corresponding sampling ports at the same time, so that sampling of a plurality of depth points in the soil is realized, a large number of soil samples with different depths are collected rapidly, the subsequent soil heavy metal detection efficiency is improved, and the rapid detection of heavy metal content in the soil is realized.
2. According to the invention, through the anti-drop assembly, the sampling shovel opening is opened when being matched with the sampling shovel in the process of sampling soil driven by the sampling driving mechanism, and the sampling shovel opening is closed when being retracted, so that the collected soil is prevented from falling out, the pollution of a soil sample in the sampling process is avoided, and the quality of the collected sample is ensured to be higher.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic view of a portion of a sample driving mechanism according to the present invention;
FIG. 4 is a schematic view of a portion of the construction of the drop assembly of the present invention;
FIG. 5 is an enlarged view of FIG. 1 at B;
FIG. 6 is an enlarged view of FIG. 2 at D;
FIG. 7 is a schematic view of a drill pipe of the present invention;
FIG. 8 is an enlarged view of FIG. 1 at C;
FIG. 9 is a schematic diagram of an embodiment of the present invention.
10, Drilling a barrel; 11. a sampling port; 12. an L-shaped groove; 13. a rotating handle; 20. a sampling driving mechanism; 21. a screw; 211. positioning a shaft; 212. a lifting plate; 213. a turntable; 214. a handle; 22. a slide block; 23. a conical block; 231. a guide groove; 24. a connecting block; 30. a sampling shovel; 40. an anti-drop assembly; 41. a movable plate; 42. a connecting lever; 421. a relief groove; 43. a first connecting rod; 44. a second connecting rod; 45. a closing plate; 46. a fixing plate; 461. a collar; 47. a spring; 50. a baffle; 51. a connecting ring; 52. a protruding plate; 60. and a cover plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
referring to fig. 1 to 9, an embodiment of the present invention provides a device for rapidly detecting heavy metal content in soil, including:
The drilling barrel 10 is used for drilling into soil to be sampled, and one side of the outer wall of the drilling barrel 10 is fixedly connected with the rotating handle 13, so that a user can conveniently control the depth of drilling into the soil. The middle part of the drill cylinder 10 is provided with a cavity for storing components such as the sampling driving mechanism 20, the anti-drop component 40 and the like. The side wall of the drill cylinder 10 is respectively provided with a plurality of sampling ports 11 at different heights, and the sampling ports are used for allowing a sampling shovel 30 to pass through for sampling;
And the sampling driving mechanism 20 is used for simultaneously driving the plurality of sampling shovels 30 to respectively collect soil from the corresponding sampling ports 11. The sampling driving mechanism 20 is arranged in the middle of the drill cylinder 10, and the sampling depth of the sampling shovel 30 can be controlled by the sampling driving mechanism 20 of the driving mechanism;
Sampling shovel 30 is driven by sampling drive mechanism 20, and samples the external soil through sampling port 11. The sampling shovel 30 is arranged corresponding to the sampling ports 11 respectively, the sampling travelling direction of the sampling shovel 30 is vertical to the axis of the drilling cylinder 10, the collected soil sample is ensured to be as uniform as possible, and the collected soil sample is ensured to be representative;
The anti-drop subassembly 40 is used for closing its opening after sampling shovel 30 gathers earth, prevents that the earth of gathering from falling out, and it sets up in sampling shovel 30 opening part.
In this embodiment, through the cooperation of above-mentioned subassembly, can realize the sampling to a plurality of degree of depth positions in the soil, collect a large amount of and not soil sample of different degree of depth fast, improve follow-up soil heavy metal detection's efficiency to realize the short-term test of heavy metal content in the soil.
In one embodiment, the sampling driving mechanism 20 comprises a screw 21, the screw 21 is rotatably connected to the middle part of the cavity of the drill cylinder 10 through a positioning shaft 211, a plurality of sliding blocks 22 are in threaded connection with the outer wall of the screw 21, conical blocks 23 are arranged on the upper sides of the sliding blocks 22, guide grooves 231 are formed in the side walls of the conical blocks 23, connecting blocks 24 are slidably connected to the inner walls of the guide grooves 231, and one side, away from the opening, of the sampling shovel 30 is fixedly connected to one end of each connecting block 24;
In this embodiment, the screw 21 is rotatably connected to the middle of the cavity of the drill barrel 10 through a positioning shaft 211. When the screw 21 rotates, the threads of the outer wall of the screw 21 will interact with the threads on the slider 22, driving the slider 22 to move in the axial direction of the screw 21. A tapered block 23 is provided above each slider 22, and a guide groove 231 is provided on the side wall of the tapered block 23. When the sliding block 22 moves, the guide groove 231 can guide the connecting block 24 to move along the corresponding direction, and at the moment, the sampling shovel 30 is controlled to extend outwards, namely the sampling depth, due to the shape of the conical block 23 and the arrangement direction of the guide groove 231;
It should be noted that in conventional arrangements, the guide for sampling blade 30 should be positioned so that it is always aligned with the sampling port.
In one embodiment, the end of the screw 21 is fixedly connected with a turntable 213, and one side of the turntable 213 is fixedly connected with a handle 214;
In this embodiment, when the operator wishes to change the depth of the drilled soil, he can grasp the handle 214 and twist the turntable 213 to move the screw 21 upward or downward, thereby performing the sampling operation.
In one embodiment, the anti-falling assembly 40 comprises a movable plate 41, the movable plate 41 is movably arranged on the upper side of the sampling shovel 30, a connecting lever 42 is rotatably connected to the lower side of the movable plate 41, one side of the connecting lever 42 is rotatably connected to the top wall of the sampling shovel 30, a yielding groove 421 is formed in the hinged position of the connecting lever 42 and the sampling shovel 30, one end of the connecting lever 42 extends to the inner cavity of the sampling shovel 30, a first connecting rod 43 is rotatably connected to one end of the connecting lever 42, one end of the first connecting rod 43, far away from the connecting lever 42, is rotatably connected with two second connecting rods 44 respectively, two sealing plates 45 are rotatably connected to two sides of the opening edge of the sampling shovel 30, and one ends of the two second connecting rods 44 are rotatably connected to the adjacent sides of the two sealing plates 45 respectively;
In this embodiment, during the process of extending the sampling shovel 30 outwards, under the action of the connecting lever 42, one end of the connecting lever 42 pushes the first connecting rod 43, so that the two closing plates 45 are pushed outwards by the two second connecting rods 44 until the two closing plates are opened; when the sampling shovel 30 is retracted, under the action of the connecting lever 42, the connecting lever 42 pulls the first connecting rod 43, so that the two sealing plates 45 are pulled inwards through the two second connecting rods 44, the two sealing plates 45 are sealed at the opening of the sampling shovel 30, and the sampled soil is not easy to fall out of the sampling shovel 30;
Through the design, the anti-falling assembly 40 can rapidly and automatically close the opening of the sampling shovel 30, effectively prevent the soil sample from falling off, and can also avoid the pollution of the soil sample in the sampling process, so that the collected sample quality is higher.
In one embodiment, the anti-falling assembly 40 further includes a fixing plate 46, the middle part of the fixing plate 46 is fixedly connected with a collar 461, the collar 461 is embedded on the outer wall of the screw 21, the collar 461 is limited by the screw 21 to move axially along the screw 21, the bottom side of the fixing plate 46 is fixedly connected with a plurality of springs 47, one end of each spring 47 is fixedly connected to the upper side of the movable plate 41, so that the movable plate 41 can move up and down.
In this embodiment, the fixing plate 46, the collar 461 and the spring 47 are used to limit and fix the position of the anti-drop assembly 40, so as to improve the stability of the assembly during operation.
In one embodiment, the opening side of the sampling shovel 30 is arranged in a triangle shape, and the sealing plates 45 cover two sides of the triangle of the sampling shovel 30;
In this embodiment, through setting up sampling shovel 30 opening part to triangle-shaped for sampling shovel 30 is more smooth when stretching into soil, is difficult for taking place to block up, compares simultaneously in sampling shovel 30 of flat mouthful, more can save anti falling subassembly 40 range of motion, improves its closing cap sampling shovel 30's precision and stability.
In one embodiment, a baffle 50 is arranged on the inner wall of the drill cylinder 10, a plurality of sampling ports 11 are covered on the baffle 50, and are used for preventing soil from entering the drill cylinder 10 from the sampling ports 11 when the drill cylinder 10 is drilled into the soil, a connecting ring 51 is fixedly connected to the bottom end of the baffle 50, the connecting ring 51 is rotatably connected to the bottom side of a cavity of the drill cylinder 10, a lifting plate 212 is fixedly connected to the bottom side of the sampling driving mechanism 20, and the lifting plate 212 is arranged on the upper side of the connecting ring 51;
in this embodiment, through the setting of baffle 50 for prevent that soil from getting into in the section of thick bamboo 10 from sampling port 11 when boring section of thick bamboo 10 into the soil, and through the cooperation setting of lifting plate and go-between, make the accessible follow bore section of thick bamboo 10 upper end opening with baffle 50 pull out, then take out the whole device in the section of thick bamboo 10 through 212 and 51 cooperation, be convenient for carry out soil detection and the maintenance of device.
In one embodiment, a protruding plate 52 is arranged on one side of the baffle 50, an L-shaped groove 12 is arranged on the side wall of the drill cylinder 10, and the protruding plate 52 is arranged in the L-shaped groove 12;
In this embodiment, the protruding plate 52 is matched with the L-shaped groove 12, so that when the baffle 50 is placed in the drill barrel 10, the baffle can be blocked by the L-shaped groove 12 to prevent the baffle from falling off, and by the arrangement of the L-shaped groove 12, the baffle 50 is rotated to block 11, so that limit references exist, and the operation difficulty of the device is reduced.
In one embodiment, a cover plate 60 is arranged at an opening at the upper end of the drill cylinder 10, a screw 21 penetrates through the cover plate 60, a rotary table 213 is fixedly connected to the top end of the screw 21, and a handle 214 is fixedly connected to the upper side of the rotary table 213;
In this embodiment, the handle 214 is turned to drive the turntable 213 to rotate, so as to drive the screw 21 to rotate, and the cover plate 60 is arranged to close the opening of the drill cylinder 10, and the cover plate 60 can be opened when the soil is taken out.
The method for using the device comprises the following steps:
S1, firstly, determining the position of soil to be detected, aligning the tip of a drilling barrel 10 to the soil at the detection position, and drilling the drilling barrel 10 into the soil to a required depth by rotating a rotary handle 13;
s2, the protruding plate 52 rotates in the L-shaped groove 12, so that the baffle 50 is driven to rotate on the inner wall of the drill cylinder 10, and a plurality of sampling ports 11 are opened;
S3, driving the turntable 213 to rotate by rotating the handle 214, so as to drive the screw 21 to rotate, driving the plurality of sliding blocks 22 to slide upwards by rotating the screw 21, driving the conical block 23 to slide upwards, and enabling the sampling shovel 30 fixed by the connecting block 24 to extend towards the sampling port 11 through the matching of the guide groove 231 and the connecting block 24 in the upward sliding process of the conical block 23, and then shoveling soil positioned outside the position of the sampling port 11 into the sampling shovel 30;
s4, then the plurality of sliding blocks 22 slide downwards by reversing the screw 21, so that the plurality of conical blocks 23 slide downwards, and in the process, the connecting blocks 24 drive the sampling shovel 30 to retract inwards by matching the guide grooves 231 with the connecting blocks 24;
S5, in the process that the sampling shovel 30 extends outwards, under the action of the connecting lever 42, one end of the connecting lever 42 pushes the first connecting rod 43, so that the two closing plates 45 are pushed outwards through the two second connecting rods 44 until the two closing plates are opened; when the sampling shovel 30 is retracted, under the action of the connecting lever 42, the connecting lever 42 pulls the first connecting rod 43, so that the two sealing plates 45 are pulled inwards through the two second connecting rods 44, the two sealing plates 45 are sealed at the opening of the sampling shovel 30, and the sampled soil is not easy to fall out of the sampling shovel 30;
S6, taking out the internal device of the drill cylinder 10 from the opening of the drill cylinder 10, and then taking out the soil to detect the soil with different depths.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a quick detection device of heavy metal content in soil which characterized in that includes:
the drilling barrel (10) is used for drilling into soil to be sampled, one side of the outer wall of the drilling barrel (10) is fixedly connected with a rotating handle (13), a cavity is formed in the middle of the drilling barrel (10), and a plurality of sampling ports (11) are respectively formed in different heights of the side wall of the drilling barrel (10);
The sampling driving mechanism (20) is used for simultaneously driving the plurality of sampling shovels (30) to collect soil from the corresponding sampling ports (11) respectively, and is arranged in the middle of the drilling barrel (10);
The sampling shovel (30) is driven by the sampling driving mechanism (20), and is used for sampling the external soil through the sampling ports (11), a plurality of sampling shovels (30) are respectively arranged corresponding to the sampling ports (11), and the sampling travelling direction of the sampling shovel (30) is perpendicular to the axis of the drilling cylinder (10);
the anti-falling assembly (40) is used for sealing the opening of the sampling shovel (30) after the sampling shovel collects soil and preventing the collected soil from falling out, and is arranged at the opening of the sampling shovel (30);
The sampling driving mechanism (20) comprises a screw (21), the screw (21) is rotationally connected to the middle of a cavity of the drill cylinder (10) through a positioning shaft (211), a plurality of sliding blocks (22) are connected to the outer wall of the screw (21) in a threaded mode, conical blocks (23) are arranged on the upper sides of the sliding blocks (22), guide grooves (231) are formed in the side walls of the conical blocks (23), connecting blocks (24) are connected to the inner walls of the guide grooves (231) in a sliding mode, and one side, away from the opening, of the sampling shovel (30) is fixedly connected to one end of each connecting block (24);
The anti-drop assembly (40) comprises a movable plate (41), the movable plate (41) is movably arranged on the upper side of the sampling shovel (30), a connecting lever (42) is rotatably connected to the lower side of the movable plate (41), one side of the connecting lever (42) is rotatably connected to the top wall of the sampling shovel (30), a yielding groove (421) is formed in the hinged position of the connecting lever (42) and the sampling shovel (30), one end of the connecting lever (42) extends to the inner cavity of the sampling shovel (30), a first connecting rod (43) is rotatably connected to one end of the connecting lever (42) located in the inner cavity of the sampling shovel (30), two second connecting rods (44) are rotatably connected to one end of the first connecting rod (43) away from the connecting lever (42), two sealing plates (45) are rotatably connected to two sides of the opening edge of the sampling shovel (30), and one ends of the two second connecting rods (44) are rotatably connected to the adjacent sides of the two sealing plates (45).
The anti-drop assembly (40) further comprises a fixed plate (46), a lantern ring (461) is fixedly connected to the middle of the fixed plate (46), the lantern ring (461) is embedded in the outer wall of the screw (21), the lantern ring (461) is limited by the screw (21) to move axially along the screw (21), a plurality of springs (47) are fixedly connected to the bottom side of the fixed plate (46), one end of each spring (47) is fixedly connected to the upper side of the movable plate (41), and the movable plate (41) can move up and down;
the inner wall of the drilling barrel (10) is provided with a baffle (50), the baffle (50) is covered with a plurality of sampling ports (11) for preventing soil from entering the drilling barrel (10) from the sampling ports (11) when the drilling barrel (10) is drilled into the soil, the bottom end of the baffle (50) is fixedly connected with a connecting ring (51), the connecting ring (51) is rotationally connected to the bottom side of a cavity of the drilling barrel (10), the bottom side of the sampling driving mechanism (20) is fixedly connected with a lifting plate (212), and the lifting plate (212) is arranged on the upper side of the connecting ring (51);
a protruding plate (52) is arranged on one side of the baffle (50), an L-shaped groove (12) is formed in the side wall of the drill cylinder (10), and the protruding plate (52) is arranged in the L-shaped groove (12).
2. The rapid detection device for heavy metal content in soil according to claim 1, wherein a turntable (213) is fixedly connected to the end of the screw (21), and a handle (214) is fixedly connected to one side of the turntable (213).
3. The rapid detection device for heavy metal content in soil according to claim 1, wherein the opening side of the sampling shovel (30) is arranged in a triangle shape, and the sealing plates (45) are covered on two side sides of the triangle of the sampling shovel (30).
4. The rapid detection device for heavy metal content in soil according to claim 1, wherein a cover plate (60) is arranged at an opening at the upper end of the drill cylinder (10), the screw (21) penetrates through the cover plate (60), a rotary table (213) is fixedly connected to the top end of the screw (21), and a handle (214) is fixedly connected to the upper side of the rotary table (213).
5. A rapid detection device for heavy metal content in soil according to any one of claims 1 to 4, characterized in that the method of using said device comprises the steps of:
s1, determining the position of soil to be detected, aligning the tip of a drilling barrel (10) to the soil at the detection position, and drilling the drilling barrel (10) into the soil to reach the required depth by rotating a rotating handle (13);
S2, rotating the protruding plate (52) in the L-shaped groove (12) to drive the baffle plate (50) to rotate on the inner wall of the drill cylinder (10), so that the sampling ports (11) are opened;
S3, driving a turntable (213) to rotate by rotating a handle (214), thereby driving a screw (21) to rotate, driving a plurality of sliding blocks (22) to slide upwards by rotating the screw (21), driving a conical block (23) to slide upwards, and enabling a sampling shovel (30) fixed by the connecting block (24) to extend towards a sampling port (11) through the cooperation of a guide groove (231) and the connecting block (24) in the upward sliding process of the conical block (23), and then shoveling soil positioned outside the position of the sampling port (11) into the sampling shovel (30);
s4, then, by reversing the screw (21), the sliding blocks (22) slide downwards, so that the conical blocks (23) slide downwards, and in the process, the connecting blocks (24) drive the sampling shovel (30) to retract inwards through the matching of the guide grooves (231) and the connecting blocks (24);
S5, in the process that the sampling shovel (30) extends outwards, under the action of the connecting lever (42), one end of the connecting lever (42) pushes the first connecting rod (43), so that the two sealing plates (45) are pushed outwards through the two second connecting rods (44) until the two sealing plates are opened; when the sampling shovel (30) is retracted, under the action of the connecting lever (42), the connecting lever (42) pulls the first connecting rod (43), so that the two sealing plates (45) are pulled inwards through the two second connecting rods (44), the two sealing plates (45) are covered at the opening of the sampling shovel (30), and sampled soil is not easy to fall out of the sampling shovel (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310680562.4A CN116699106B (en) | 2023-06-09 | 2023-06-09 | Device and method for rapidly detecting heavy metal content in soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310680562.4A CN116699106B (en) | 2023-06-09 | 2023-06-09 | Device and method for rapidly detecting heavy metal content in soil |
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